Decision feedback equalizer for code division multiplexed signals
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United States of America Patent
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Apr 5, 2011
Grant Date -
Sep 27, 2007
app pub date -
Mar 21, 2006
filing date -
Mar 21, 2006
priority date (Note) -
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Abstract
A decision feedback equalizer (DFE) processes a signal having multiple code channels by filtering an error signal based on a difference between a received signal and an estimated received signal. The received signal is processed to recover data on each of the code channels and to generate an estimate of a transmitted signal corresponding to the received signal. A channel estimate is applied to the resulting estimated transmitted signal to generate the estimated received signal. After the filter filters the error signal, a combiner combines the filtered error signal and the estimated transmitted signal.
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